UCC28711D
ActiveCONSTANT-VOLTAGE, CONSTANT-CURRENT PWM WITH PSR, VALLEY SWITCHING, NTC OPTION, AND 0-MV CABLE COMP.
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UCC28711D
ActiveCONSTANT-VOLTAGE, CONSTANT-CURRENT PWM WITH PSR, VALLEY SWITCHING, NTC OPTION, AND 0-MV CABLE COMP.
Technical Specifications
Parameters and characteristics for this part
| Specification | UCC28711D |
|---|---|
| Fault Protection | Over Voltage, Current Limiting |
| Frequency - Switching [Max] | 100 kHz |
| Frequency - Switching [Min] | 680 Hz |
| Internal Switch(s) | False |
| Mounting Type | Surface Mount |
| Operating Temperature [Max] | 125 °C |
| Operating Temperature [Min] | -40 C |
| Output Isolation | Isolated |
| Package / Case | 0.154 in, 3.9 mm, 7 Leads |
| Package / Case | 8-SOIC |
| Supplier Device Package | 7-SOIC |
| Topology | Flyback |
| Voltage - Start Up | 21 V |
| Voltage - Supply (Vcc/Vdd) [Max] | 35 V |
| Voltage - Supply (Vcc/Vdd) [Min] | 9 V |
| Part | Operating Temperature [Min] | Operating Temperature [Max] | Supplier Device Package | Voltage - Supply (Vcc/Vdd) [Max] | Voltage - Supply (Vcc/Vdd) [Min] | Package / Case | Package / Case | Frequency - Switching [Max] | Frequency - Switching [Min] | Internal Switch(s) | Mounting Type | Fault Protection | Output Isolation | Voltage - Start Up | Topology | Supplied Contents | Board Type | Outputs and Type | Outputs and Type | Power - Output | Frequency - Switching | Utilized IC / Part | Voltage - Input [Min] | Voltage - Input [Max] | Contents | Current - Output | Regulator Topology | Voltage - Output | Main Purpose |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments | -40 C | 125 °C | 7-SOIC | 35 V | 9 V | 0.154 in 3.9 mm 7 Leads | 8-SOIC | 100 kHz | 680 Hz | Surface Mount | Current Limiting Over Voltage | Isolated | 21 V | Flyback | |||||||||||||||
 Texas Instruments | Board(s) | Fully Populated | 1 Isolated Output Isolated | 1 | 5 W | 100 kHz | UCC28711 | 100 VAC | 240 VAC | Board(s) | 1 A | Flyback | 5 V | AC/DC Primary Side | |||||||||||||||
Texas Instruments | -40 C | 125 °C | 7-SOIC | 35 V | 9 V | 0.154 in 3.9 mm 7 Leads | 8-SOIC | 100 kHz | 680 Hz | Surface Mount | Current Limiting Over Voltage | Isolated | 21 V | Flyback |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | N/A | 751 | $ 1.76 | |
| Tube | 1 | $ 1.66 | ||
| 10 | $ 1.49 | |||
| 75 | $ 1.40 | |||
| 150 | $ 1.20 | |||
| 300 | $ 1.12 | |||
| 525 | $ 0.98 | |||
| 1050 | $ 0.81 | |||
| 2550 | $ 0.76 | |||
| 5025 | $ 0.73 | |||
| Texas Instruments | TUBE | 1 | $ 1.25 | |
| 100 | $ 1.03 | |||
| 250 | $ 0.74 | |||
| 1000 | $ 0.56 | |||
Description
General part information
UCC28711 Series
The UCC2871x family of flyback power supply controllers provides isolated-output Constant-Voltage (CV) and Constant-Current (CC) output regulation without the use of an optical coupler. The devices process information from the primary power switch and an auxiliary flyback winding for precise control of output voltage and current.
An internal 700-V start-up switch, dynamically-controlled operating states and a tailored modulation profile support ultra-low standby power without sacrificing start-up time or output transient response.
Control algorithms in the UCC28710 family allow operating efficiencies to meet or exceed applicable standards. The output drive interfaces to a MOSFET power switch. Discontinuous conduction mode (DCM) with valley switching reduces switching losses. Modulation of switching frequency and primary current peak amplitude (FM and AM) keeps the conversion efficiency high across the entire load and line ranges.
Documents
Technical documentation and resources